static void Main(string[] args) { IDocument objDocSupplier = DocumentFactory.GetDocinstance(0, "00001"); objDocSupplier.GetDocument(); Console.WriteLine("And Number is " + objDocSupplier.GetNumber()); IDocument objDocSupplier1 = DocumentFactory.GetDocinstance(1, "00028"); objDocSupplier1.GetDocument(); Console.WriteLine("And Number is " + objDocSupplier1.GetNumber()); Console.ReadLine(); }